Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Net income	$ 216,242	$ 147,693	$ 68,487	$ 156,074	$ 363,935	$ 224,561
Net (income) loss attributable to non-controlling interests	80		(148)		(160)	140
Net income attributable to Equinix	$ 216,322		$ 68,339		$ 363,775	$ 224,701
Weighted-average shares used to calculate basic EPS (in shares)	91,036		89,648		90,904	89,490
Effect of dilutive securities:
Employee equity awards (in shares)	226		456		309	534
Weighted-average shares used to calculate diluted EPS (in shares)	91,262		90,104		91,213	90,024
Basic EPS (in dollars per share)	$ 2.38		$ 0.76		$ 4.00	$ 2.51
Diluted EPS (in dollars per share)	$ 2.37		$ 0.76		$ 3.99	$ 2.50